sysdeps/unix/sysv/linux/generic/bits/fcntl.h

   1 /* O_*, F_*, FD_* bit values for the generic Linux ABI.
   2    Copyright (C) 2011-2022 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library.  If not, see
  17    <https://www.gnu.org/licenses/>.  */
  18
  19 #ifndef _FCNTL_H
  20 # error "Never use <bits/fcntl.h> directly; include <fcntl.h> instead."
  21 #endif
  22
  23 #include <bits/wordsize.h>
  24
  25 #if __WORDSIZE == 64
  26 # define __O_LARGEFILE  0
  27 #endif
  28
  29 struct flock
  30   {
  31     short int l_type;   /* Type of lock: F_RDLCK, F_WRLCK, or F_UNLCK.  */
  32     short int l_whence; /* Where `l_start' is relative to (like `lseek').  */
  33 #ifndef __USE_FILE_OFFSET64
  34     __off_t l_start;    /* Offset where the lock begins.  */
  35     __off_t l_len;      /* Size of the locked area; zero means until EOF.  */
  36 #else
  37     __off64_t l_start;  /* Offset where the lock begins.  */
  38     __off64_t l_len;    /* Size of the locked area; zero means until EOF.  */
  39 #endif
  40     __pid_t l_pid;      /* Process holding the lock.  */
  41   };
  42
  43 #ifdef __USE_LARGEFILE64
  44 struct flock64
  45   {
  46     short int l_type;   /* Type of lock: F_RDLCK, F_WRLCK, or F_UNLCK.  */
  47     short int l_whence; /* Where `l_start' is relative to (like `lseek').  */
  48     __off64_t l_start;  /* Offset where the lock begins.  */
  49     __off64_t l_len;    /* Size of the locked area; zero means until EOF.  */
  50     __pid_t l_pid;      /* Process holding the lock.  */
  51   };
  52 #endif
  53
  54 /* Include generic Linux declarations.  */
  55 #include <bits/fcntl-linux.h>